Just got done watching it (on Blu-ray) and for the most part did enjoy it, but as with others, the first 20-minutes were incredibly slow and there were portions in the second act with pacing issues. However, thanks to Denzel Washington and some well choreographed fight scenes, I was able to overlook those flaws.
I just hope when a sequel happens, they get a new director, though one wonders if Washington would appear in one without Fuqua. ***½/*****, (B, 6.8/10, 2.75/4)